Chain polymerization in which
propagation involves reaction between a
growing-chain end and an
activated monomer.
Note: The activator in activated-monomer polymerization should not be referred to as a catalyst unless it is established that it is a catalyst.
Examples: Anion-activated polymerization of lactams, the cation-activated polymerization of cyclic ethers, and the Lewis acid-activated polymerization of lactones.
See: cation-activated-monomer polymerization, anion-activated-monomer polymerization, activated monomer
Source:
PAC, 2022, 94, 1093. 'Terminology for chain polymerization (IUPAC Recommendations 2021)' on page 1098 (https://doi.org/10.1515/pac-2020-1211)